Steel ladle working lining capable of controlling molten steel slag entrapment

Abstract

The invention relates to a steel ladle working lining capable of controlling molten steel slag entrapment. According to the technical scheme of the steel ladle working lining, an insulation layer (4)is laid on the inner wall of a steel ladle shell (7); a solid oxide fuel cell layer (3) is arranged in the mode of being attached to the inner wall of the insulation layer (7); an electromagnetic coil(2) is arranged in the inner wall, above a slag line, of the solid oxide fuel cell layer (3); slag line bricks (1) are laid in the mode of being attached to the inner wall of the electromagnetic coil(2); ladle wall bricks (5) are arranged on the inner wall, under a ladle wall slag line, of the solid oxide fuel cell layer (3); a seat brick layer (8) is laid on the inner wall, at the ladle bottom,of the solid oxide fuel cell layer (3); the solid oxide fuel cell layer (3) is of a flat plate type or a tubular type; the thickness of the solid oxide fuel cell layer (3) is 0.3-0.8 time that of theladle wall bricks (5); and the thickness of the electromagnetic coil (2) is 0.2-0.5 time that of the ladle wall bricks (5). The steel ladle working lining has the characteristics that molten steel slag entrapment can be reduced, inclusions in steel are reduced, the steel quality is improved, and the steel ladle working lining is environmentally friendly and capable of saving energy.

Description

Technical field [0001] The invention belongs to the technical field of ladle working linings. Specifically, it relates to a ladle working lining for controlling slag entrapment of molten steel. Background technique [0002] As one of the main equipment for secondary refining outside the furnace, the ladle plays an extremely important role in improving the quality of molten steel during the refining process outside the furnace. The main functions of the ladle are to homogenize the alloy elements in the molten steel, further deoxidize and desulfurize the molten steel, and remove inclusions in the steel. The interaction between ladle slag and molten steel directly determines the desulfurization and deoxidation efficiency. In order to strengthen the interaction between the two phases, the method of blowing argon at the bottom of the ladle is often used. During the argon blowing process, the bubbles move from bottom to top to drive the molten steel to flow, increase the reaction ar...

AI Technical Summary

Problems solved by technology

[0003] Solid oxide fuel cells belong to the third generation of fuel cells. The current solid oxide fuel cells mainly have two roads to market: one is to be used in combination with steam turbines and work at a temperature higher than 850°C, and the total system efficiency is higher than 70%, this type is generally suitable for high-power power stations, the main problem is that high temperature has more stringent requirements on materials, and the preparation cost is higher; the second is used in low-power places, such as small power stations, and scattered households Electricity or electric vehicles, etc., but also face problems such as huge storage and transportation costs of fuel

However, solid oxide fuel cells have not yet been applied in the field of steelmaking

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